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WorksheetsChapter 18 Review
Total questions: 20
Worksheet time: 20mins
The substance H2SO3 is considered?
a weak acid
a strong acid
a strong base
a weak base
a neutral compound
The substance HCl is considered
a weak acid
a weak base
a strong acid
a strong base
a neutral compound
The substance Ba(OH)2 is considered
a weak acid
a strong acid
a weak base
a strong base
a neutral compound
Which of the following is the strongest acid?
HBrO
HBrO2
HClO2
HClO3
HIO
Which of the following is the strongest base
CH3NH2
NaNO3
B(OH)3
Al(OH)3
LiOH
Which of the following acids have the lowest pH?
0.1 M HBO, pKa = 2.43
0.1 M HA, pKa = 4.55
0.1 M HMO, pKa = 8.23
0.1 M HST, pKa = 11.89
What is the pH of a 0.20 M HCl solution?
less than 0
0.70
1.61
12.39
13.30
What is the pH of a 0.050 M LiOH solution
less than 1.0
1.30
3.00
11.00
12.70
What is the [OH-] for a solution that has an [H3O+] = 2.35 x 10 -3 M?
4.26 x 10-5 M
2.35 x 10-11 M
4.26 x 10-12 M
2.35 x 10-17 M
none of the above
Select the pair of substances in which an acid is listed followed by its conjugate base.
H+, HCl
NH3, NH4+
HPO42-, H2PO4-
HCO3-, CO32-
CH3COOH, CH3COOH2+
Butyric acid is responsible for the odor in rancid butter. A solution of 0.25 M butyric acid has a pH of 2.71. What is the Ka for the acid?
0.36
2.4 x 10-2
7.8 x 10-3
1.5 x 10-5
What is the pH of a 0.0100 M sodium benzoate solution? Kb (C7H5O2-) = 1.5 x 10-10
0.38
5.91
8.09
9.82
A solution is prepared by adding 0.10 mol of sodium sulfide, Na2S to 1.00 L of water. Which statement about the solution is correct?
the solution is basic
the solution is acidic
the solution is neutral
the concentration of sodium and sulfide ions will be identical
Which of the following is a Lewis base?
BCl3
Cu2+
Cl-
Mn2+
NH4+
Arrhenius bases raise the hydroxide ion concentration when dissolved in water.
true
false
Kw = 1.0 x 10-14 regardless of temperature
true
false
All weak acids have strong conjugate bases.
true
false
In order to be a Bronsted-Lowry base, a species must contain a proton
true
false
The ammoniium ion, NH4+ serves as a weak acid.
true
false
Hydrated metal ions can act as Bronsted-Lowry acids.
true
false
